RS PRO Nitrile Rubber (NBR) Rotary Shaft Seal 25 mm Inside Diameter 47 mm Outside Diameter 10 mm Thickness 226-3761

RS PRO 226-3761 Nitrile Rubber (NBR) Rotary Shaft Seal is engineered for effective sealing of rotating shafts with dimensions of 25 mm inside diameter, 47 mm outside diameter, and a thickness of 10 mm. This seal is crafted from nitrile rubber, a widely used and cost-effective elastomer known for its resistance to lubrication oils, hydraulic fluids, and grease.

The product is ideal for industrial use in driveshafts, crankshafts, and hydraulic cylinders, especially in environments where shafts require lubrication by oil or grease to prevent leakage and contamination. It provides consistent sealing performance across a wide operating temperature range from minus 20 degrees Celsius to plus 90 degrees Celsius, making it suitable for diverse industrial applications including manufacturing, machinery maintenance, and fluid power systems.

The nitrile material displays a hardness rating of 70 ±5 shore A, tensile strength of 18.9 MPa, and elongation of 438%, which ensures durability and flexibility. The black seal construction is industry standard and suitable for heavy-duty use. However, it is important to note that these nitrile seals are not compatible with brake oils, phosphoric ester fluids, or ester-based fluids, limiting certain specialized applications.

The seal material is nitrile rubber (NBR) for oil and grease resistance. Designed as a rotary shaft seal for effective sealing in rotating systems. Operating temperature from -20°C to 90°C for versatile application use. The seal is 10 mm thick with 25 mm ID and 47 mm OD for correct fitment.

Mechanical properties include 70 ±5 shore A hardness and 18.9 MPa tensile strength. Elongation capacity of 438% ensures flexibility and reliability. Resistant to lubrication oils and hydraulic fluids but unsuitable for brake oil and esters.

This RS PRO nitrile rotary shaft seal is suited for industries requiring robust, reliable sealing solutions such as mechanical engineering, automotive, hydraulic equipment manufacturing, and fluid power maintenance. It supports enhanced machinery lifespan and efficiency by preventing leakage and contamination of lubricants.

EnvMart recommends exploring related Seals and gasket products in our Mechanical Machinery & Spares category for complementary industrial sealing solutions.